Hi-Res Audio headphones with Bluetooth® capability; the SE-MS7BT offers both wireless & wired headphone solutions and are designed to fit comfortably around the ear for all day listening.To ensure that you are getting the best sound, the SE-MS7BT supports Qualcomm® aptXTM audio and AAC for high quality audio. By having NFC built-in, this makes it simple to pair another device by simply touching the devices together. The SE-MS7BT headphones utilize Hi-Res capable large 40mm drivers that are fitted perfectly to the wide cushioned ear cups. The SE-MS7BT has controls built into the headphones. But don’t panic when the SE-MS7BT battery runs down, Pioneer has you covered with the included wired cable that allows you to continue listening.